FORD E4OD – Overdrive Section Failure

COMPLAINT: Overdrive planetary and overdrive sprag failure due to lack of lube.

CAUSE: The cause may be a plugged or restricted lube passage in pump cover. There is a ball and spring under the orificed cup plug making this passage prone to clogging up.

CAUSE: Clean out the lube passage.
To check for restriciton blow into hole in pump cover. (See FIG #l) Air should exit from holes in rear of stator shaft as shown in Figure #2.

Overdrive Section Failure 1 Overdrive Section Failure 2

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